Chilli and thrips

The chilli thrips, Scirtothrips dorsalis Hood, 1919 (Thysanoptera: Thripidae) was reported for the first time in Adana Province, Turkey in October, 2020 on blueberries [Vaccinium myrtillus L. (Ericaceae)]. Its heavy infestation was detected on the vegetative parts of the blueberries. In this short communication, a brief summary of its diagnosis and damage as well as its economic importance in the region is provided.

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Investigations on Varietal screening of newly evolved chilli hybrid camparing with traditional varieties against thrips (Scirtothrips dorsalis Hood.) and white fly (Bemisia tabaci Genn.) were carried out at Samajik Vigyan Kendra, Dr. B. R. Ambedkar University Rehti, (Village Bordi) Tehsil- Nasrullaganj, Distt- Sehore (M.P.) during Rabi, 2018-19 and 2019-20.

5p chauchaungayxua10 18-03-2021 10 2   Download

A study on the Seasonal incidence of chilli thrips, Scirtothrips dorsalis Hood in relation to abiotic factors was carried out at the Central field, Sam Higginbottom University of Agriculture Technology and Sciences, Allahabad, Uttar Pradesh, India during July 2016 to November 2016.

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A field experiment on the efficacy of certain biopesticides for control of chilli thrips, Scirtothrips dorsalis Hood conducted at the Central field, Sam Higginbottom University of Agriculture Technology and Sciences, Allahabad, Uttar Pradesh, India during July 2016 to November 2016.

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Field experiments were conducted during kharif 2005, to study the effect of organic amendments on the activity of chilli thrips and mites. In the nursery, seedlings receiving vermicompost (500 g/m2) and neem cake (100 g/m2) resulted in higher seedling vigour index, comparable to the standard check. Subsequently these seedlings were transplanted in the main field amended with vermicompost (2.5 t/ha), neem cake (0.5 t/ha), combined application of vermicompost and neem cake at half dosages and standard check receiving inorganic fertilizers and plant protection.

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Seasonal incidence of different sucking pests of chilli viz., thrips (Scirtothrips dorsalis Hood), mites (Polyphagotarsonemus latus Banks), Aphid (Aphis gossypii Glov.), Whitefly (Bemesia tabaci Genn.) and Jassids (Amrsca bigutula bigutula) and natural enemies like Coccinellids and spiders were worked out in the present study during 2016 at District Seed Farm (AB Block) of Bidhan Chandra Krishi Viswavidyalaya located at Kalyani, Nadia, West Bengal. Peak population of thrips was recorded to be in 18th standard week i.e. 12.

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The investigation was carried out at Horticulture research farm, Indira Gandhi Krishi Vishwavidyalaya, Raipur (C.G.) during Rabi-summer, 2014-15 and 2015-16. The mean data revealed that among the treatments, during first season DIFACE 600 ml/ha (Difenthiuron50% WP + Acetamiprid 20% SP) recorded the mean of lowest population 3.29 and 3.35 thrips/3 leaves per plant as against 9.33 and 9.43 thrips in untreated check, respectively after first and second spray.

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The two field experiments were conducted at Tamil Nadu Agricultural University, Coimbatore, Tamil Nadu to evaluate bioefficacy, phytotoxicity effect if any of fipronil 200 SC w/v against aphids, thrips, fruit borer and its safety to non target invertebrates in chilli during June – October 2014 and 2015. The results revealed fipronil 200 SC w/v @ 50 g ai ha-1 was found as efficient treatment in reducing aphids, thrips and fruit borer. The pooled mean population (two consecutive seasons) of aphids and fruit borer larvae was recorded as 0.37 five leaves-1 and 0.43 plant -1 respectively.

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A field experiment was conducted during Rabi season of 2015-16 in Horticulture nursery, College of Agriculture, Indore to tested efficacy by using different doses of emamectin benzoate 3.7% + diafenthiuron 46.3% WP against chilli thrips. Among different treatments, T3 (Emamectin benzoate 3.7%+diafenthiuron 46.3%WP @ 250 g/ha) has proved as the best treatment for controlling thrips population and found superior over other treatment followed by T2 (Emamectin benzoate 3.7%+diafenthiuron 46.3%WP @ 200 g/ha). Highest green chilli yield of 171.11 q/ha was registered in T3 (Emamectin benzoate 3.

6p chauchaungayxua3 07-02-2020 14 0   Download